Grex is an art rock band based out of Oakland, California. In biological terms, a "grex" is an entity composed of several smaller organisms. Grex (the band) explores the meeting point between fun, delightfully strange psychedelic pop/rock and the dark outer reaches of noise and free jazz. Grex has been called "essential current-and-future listening" (Tiny Mix Tapes) and "true genre-warping music" (KFJC), recalling the explosive energy of Jimi Hendrix, the dark power of the Pixies, and the whimsical weirdness of Deerhoof.

Grex's creative derring-do has led to gigs with other like-minded musicians, including Fred Frith, Tony Levin (King Crimson), Kronos Quartet, Eddie Gale (Sun Ra, Cecil Taylor), Steve Mackay (The Stooges), Zeena Parkins, and Martin Bisi, and concerts at venues as diverse as the Great American Music Hall, the Switchboard Festival (SF), the United States of Asian America Festival (SF), the Sonic Circuits Festival (DC), and Myra Melford's New Frequencies Festival (SF).

The band has garnered notices in Signal To Noise, The Village Voice, East Bay Express (Oakland), SF Weekly, Sacramento News and Review, Time Out, Eugene Weekly, The Stranger (Seattle), Decoder Magazine, All About Jazz, and numerous music blogs.

"[Grex] makes for an otherworldly experience that, while drawing on the sounds of Jimi Hendrix and classic jazz, creates something completely original... The duo'ss sparse vocals can come off as delightfully haunting, a grittier version of She and Him." (Eugene Weekly)

"Evangelista, Scampavia and their compatriots have created an extraordinary document that should not be slept on." (Signal to Noise, review of Taglish)

"I've never heard anything like it... it's one of those sounds that seems to sync with your brain waves and thought-maps, and in the end comes out more melodious than you first think." (Fil Am Star)

"True genre warping music... Personal and heartfelt songs about love lost and found, aspired and realized... All in all a very pretty and very different album, recalling past styles but taking them in entirely new directions." (KFJC)

"The striking thing about this music was its stubborn refusal to eschew any element in favor of another... Each offered with a headlong creative urge that made the unexpected turns and sequences into a joyful expression." (HurdAudio)

"Grex is a thankful anomaly in contemporary music, merging not only an affinity, but a true love for creative improvised music on par with folk-rock, psychedelia and modern composition... Hopefully Grex gets some love from the indie-rock taste machine, because they are onto something really special." (Ni Kantu)

"The interpretations were much freer, and in particular gave Karl the opportunity to apply his virtuosic guitar style to the music." Cat Synth (review of Cardiacs tribute show)

"It's a body of works that has a life of its own, with a connecting tissue that links it to Erik Satie, the Bloodhound Gang and jazz standards in a way that gently consumes (or is consumed) by the way it veers beyond mere reference at unexpected turns." (HurdAudio)